Welcome to the club, Max.
You are following the same system as myself for buying a car.
First decide upon the model you want, and then write down the specification most desirous. Having done that, start looking.
I finished up emailing Jaguar dealers to see if they had what I wanted, and eventually found one that had never been advertised and was tucked away in the rear of their showrooms. The price was right , the mileage and service record was good,
Good luck in your search.
Regards,
Peter.